Butter 8 x 8 x 2-inch pan.,Fold and place sheet of aluminum foil down middle of pan to divide it in half.,______,Let simmer until 230° on thermometer.,Remove from heat.,Stir in coconut.,Spoon half into one side of pan.,Blend in food coloring into remaining half and pour into other side of pan.,Chill for 2 to 3 hours. Cut into 1-inch cubes.,For gifts, alternate colors in apothecary jar.